"I Do Do" is the twenty-second episode and season finale of the fourth season of the American television comedy series 30 Rock, and the 80th overall episode of the series. It was directed by series producer Don Scardino, and written by series creator, executive producer and lead actress Tina Fey. The episode originally aired on NBC in the United States on May 20, 2010. Guest stars in this episode include Elizabeth Banks, Craig Castaldo, Matt Damon, Will Forte, Susan Heyward, Kristin McGee, Julianne Moore, Paula Pell, Michael Sheen, and Jason Sudeikis. In the episode, Liz Lemon (Fey) meets the man of her dreams (Damon). Meanwhile, Jack Donaghy's (Alec Baldwin) love triangle with Avery Jessup (Banks) and Nancy Donovan (Moore) comes to a head. At the same time, NBC page Kenneth Parcell (Jack McBrayer) tries to avoid a promotion that would send him to Los Angeles, and Jenna Maroney's (Jane Krakowski) new relationship may be ruined after her boyfriend (Forte) falls for another woman. "I Do Do" was generally, though not universally, well received among television critics. According to the Nielsen Media Research, this episode was watched by 5.5 million households during its original broadcast, and received a 2.8 rating/8 share among viewers in the 18–49 demographic. "I Do Do" received two Primetime Emmy Award nominations for Outstanding Directing for a Comedy Series and Outstanding Costumes for a Series. Plot The episode starts where the previous one ended, at Kaitlin (Kristin McGee) and Floyd DeBarber's (Jason Sudeikis) wedding. Liz Lemon (Tina Fey), who is scheduled to do a reading at the ceremony, wastes time so that her boss, Jack Donaghy (Alec Baldwin), after sending her a text message to stall for time, can talk things over with Nancy Donovan (Julianne Moore). He has admitted to Nancy that he is in love with both her and Avery Jessup (Elizabeth Banks), but she cannot cope with what Jack has told her. The two talk the situation over, and Jack eventually tells Nancy that he cares for her and decides he wants to be with her. After Floyd's wedding, Liz goes to the office of her fiancé, Wesley Snipes (Michael Sheen), to retrieve his shoes for Cerie Xerox's (Katrina Bowden) wedding. At Wesley's office, she meets an airline pilot named Carol (Matt Damon). When she learns that Carol is a big fan of The Girlie Show with Tracy Jordan (TGS), for which Liz is